Legacy ExtraGalactic UV Survey with The Hubble Space Telescope: Stellar Cluster Catalogs and First Insights Into Cluster Formation and Evolution in NGC 628

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dc.contributor.authorAdamo, Angela
dc.contributor.authorRyon, Jenna
dc.contributor.authorMessa, M
dc.contributor.authorKim, Hwihyun
dc.contributor.authorGrasha, Kathryn
dc.contributor.authorCook, David
dc.contributor.authorCalzetti, Daniela
dc.contributor.authorLee, Janice C
dc.contributor.authorWhitmore, Bradley
dc.contributor.authorElmegreen, B. G.
dc.contributor.authorKrumholz, Mark
dc.date.accessioned2021-07-28T00:55:30Z
dc.date.issued2017
dc.date.updated2020-11-23T10:45:05Z
dc.description.abstractWe report the large effort that is producing comprehensive high-level young star cluster (YSC) catalogs for a significant fraction of galaxies observed with the Legacy ExtraGalactic UV Survey (LEGUS) Hubble treasury program. We present the methodology developed to extract cluster positions, verify their genuine nature, produce multiband photometry (from NUV to NIR), and derive their physical properties via spectral energy distribution fitting analyses. We use the nearby spiral galaxy NGC 628 as a test case for demonstrating the impact that LEGUS will have on our understanding of the formation and evolution of YSCs and compact stellar associations within their host galaxy. Our analysis of the cluster luminosity function from the UV to the NIR finds a steepening at the bright end and at all wavelengths suggesting a dearth of luminous clusters. The cluster mass function of NGC 628 is consistent with a power-law distribution of slopes and a truncation of a few times 105. After their formation, YSCs and compact associations follow different evolutionary paths. YSCs survive for a longer time frame, confirming their being potentially bound systems. Associations disappear on timescales comparable to hierarchically organized star-forming regions, suggesting that they are expanding systems. We find mass-independent cluster disruption in the inner region of NGC 628, while in the outer part of the galaxy there is little or no disruption. We observe faster disruption rates for low mass (≤104) clusters, suggesting that a mass-dependent component is necessary to fully describe the YSC disruption process in NGC 628. © 2017.en_AU
dc.description.sponsorshipA.A. acknowledges partial support from the Swedish Royal Academy. G.A. acknowledges support from the Science and Technology Facilities Council (ST/L00075X/1 and ST/M503472/1). C.D. acknowledges funding from the FP7 ERC starting grant LOCALSTAR (no. 280104). M.F. acknowledges support by the Science and Technology Facilities Council (grant number ST/L00075X/1). D.A.G. kindly acknowledges financial support by the German Research Foundation (DFG) through program GO 1659/3-2. A.H. thanks the Spanish MINECO for grant AYA2015-68012-c2-1.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0004-637Xen_AU
dc.identifier.urihttp://hdl.handle.net/1885/241204
dc.language.isoen_AUen_AU
dc.publisherIOP Publishingen_AU
dc.rights© 2017. The American Astronomical Societyen_AU
dc.sourceThe Astrophysical Journalen_AU
dc.titleLegacy ExtraGalactic UV Survey with The Hubble Space Telescope: Stellar Cluster Catalogs and First Insights Into Cluster Formation and Evolution in NGC 628en_AU
dc.typeJournal articleen_AU
local.bibliographicCitation.issue2en_AU
local.bibliographicCitation.lastpage26en_AU
local.bibliographicCitation.startpage1en_AU
local.contributor.affiliationAdamo, Angela, Stockholm Universityen_AU
local.contributor.affiliationRyon, Jenna, Space Telescope Science Instituteen_AU
local.contributor.affiliationMessa, M, Stockholm Universityen_AU
local.contributor.affiliationKim, Hwihyun, Gemini Observatoryen_AU
local.contributor.affiliationGrasha, Kathryn, University of Massachusetts–Amhersten_AU
local.contributor.affiliationCook, David, California Institute of Technology, Pasadenaen_AU
local.contributor.affiliationCalzetti, Daniela, University of Massachusettsen_AU
local.contributor.affiliationLee, Janice C, Space Telescope Science Instituteen_AU
local.contributor.affiliationWhitmore, Bradley, Space Telescope Science Instituteen_AU
local.contributor.affiliationElmegreen, B. G., IBMen_AU
local.contributor.affiliationKrumholz, Mark, College of Science, ANUen_AU
local.contributor.authoremailu1000557@anu.edu.auen_AU
local.contributor.authoruidKrumholz, Mark, u1000557en_AU
local.description.embargo2099-12-31
local.description.notesImported from ARIESen_AU
local.identifier.absfor020104 - Galactic Astronomyen_AU
local.identifier.ariespublicationa383154xPUB6586en_AU
local.identifier.citationvolume841en_AU
local.identifier.doi10.3847/1538-4357/aa7132en_AU
local.identifier.scopusID2-s2.0-85020693779
local.identifier.thomsonID000402725700007
local.identifier.uidSubmittedBya383154en_AU
local.publisher.urlhttp://iopscience.iop.org/0004-637Xen_AU
local.type.statusPublished Versionen_AU

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